JM

John Graham Michael

EP Econolite Control Products: 1 patents #2 of 7Top 30%
📍 Philadelphia, PA: #1,701 of 4,834 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,322,254 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4907160 Intersection monitor Gary Milton Duncan, Henry Arnold Zwicky 1990-03-06
4205538 Miniature school ring top with beveled bezel — 1980-06-03